/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.handler.skillhandlers;

import net.sf.l2j.Config;
import net.sf.l2j.gameserver.handler.ISkillHandler;
import net.sf.l2j.gameserver.model.L2Attackable;
import net.sf.l2j.gameserver.model.L2Character;
import net.sf.l2j.gameserver.model.L2ItemInstance;
import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.L2Skill;
import net.sf.l2j.gameserver.model.L2Skill.SkillType;
import net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.serverpackets.InventoryUpdate;
import net.sf.l2j.gameserver.network.serverpackets.ItemList;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.util.Rnd;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * @author l3x
 */
public class Harvest implements ISkillHandler {
	private static Log _log = LogFactory.getLog(Harvest.class.getName());
	private static final SkillType[] SKILL_IDS = { SkillType.HARVEST };
	private L2PcInstance _activeChar;
	private L2MonsterInstance _target;

	public void useSkill(L2Character activeChar, L2Skill skill,
			L2Object[] targets) {
		if (!(activeChar instanceof L2PcInstance))
			return;
		_activeChar = (L2PcInstance) activeChar;
		L2Object[] targetList = skill.getTargetList(activeChar);
		InventoryUpdate iu = Config.FORCE_INVENTORY_UPDATE ? null
				: new InventoryUpdate();
		if (targetList == null)
			return;
		if (_log.isDebugEnabled())
			_log.info("Casting harvest");
		for (int index = 0; index < targetList.length; index++) {
			if (!(targetList[index] instanceof L2MonsterInstance))
				continue;
			_target = (L2MonsterInstance) targetList[index];
			if (_activeChar != _target.getSeeder()) {
				SystemMessage sm = new SystemMessage(
						SystemMessageId.YOU_ARE_NOT_AUTHORIZED_TO_HARVEST);
				_activeChar.sendPacket(sm);
				continue;
			}
			boolean send = false;
			int total = 0;
			int cropId = 0;
			// TODO: check items and amount of items player harvest
			if (_target.isSeeded()) {
				if (calcSuccess()) {
					L2Attackable.RewardItem[] items = _target.takeHarvest();
					if (items != null && items.length > 0) {
						for (L2Attackable.RewardItem ritem : items) {
							cropId = ritem.getItemId(); // always got 1 type of
														// crop as reward
							if (_activeChar.isInParty())
								_activeChar.getParty().distributeItem(
										_activeChar, ritem, true, _target);
							else {
								L2ItemInstance item = _activeChar
										.getInventory()
										.addItem(
												"Manor",
												ritem.getItemId(),
												ritem.getCount()
														* Config.RATE_DROP_MANOR,
												_activeChar, _target);
								if (iu != null)
									iu.addItem(item);
								send = true;
								total += ritem.getCount();
							}
						}
						if (send) {
							SystemMessage smsg = new SystemMessage(
									SystemMessageId.YOU_PICKED_UP_S1_S2);
							smsg.addNumber(total);
							smsg.addItemName(cropId);
							_activeChar.sendPacket(smsg);
							if (_activeChar.getParty() != null) {
								smsg = new SystemMessage(
										SystemMessageId.S1_HARVESTED_S3_S2S);
								smsg.addString(_activeChar.getName());
								smsg.addNumber(total);
								smsg.addItemName(cropId);
								_activeChar.getParty().broadcastToPartyMembers(
										_activeChar, smsg);
							}
							if (iu != null)
								_activeChar.sendPacket(iu);
							else
								_activeChar.sendPacket(new ItemList(
										_activeChar, false));
						}
					}
				} else
					_activeChar.sendPacket(new SystemMessage(
							SystemMessageId.THE_HARVEST_HAS_FAILED));
			} else
				_activeChar
						.sendPacket(new SystemMessage(
								SystemMessageId.THE_HARVEST_FAILED_BECAUSE_THE_SEED_WAS_NOT_SOWN));
		}
	}

	private boolean calcSuccess() {
		int basicSuccess = 100;
		int levelPlayer = _activeChar.getLevel();
		int levelTarget = _target.getLevel();
		int diff = levelPlayer - levelTarget;
		if (diff < 0)
			diff = -diff;
		// apply penalty, target <=> player levels
		// 5% penalty for each level
		if (diff > 5)
			basicSuccess -= (diff - 5) * 5;
		// success rate cant be less than 1%
		if (basicSuccess < 1)
			basicSuccess = 1;
		int rate = Rnd.nextInt(99);
		if (rate < basicSuccess)
			return true;
		return false;
	}

	public SkillType[] getSkillIds() {
		return SKILL_IDS;
	}
}
